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Influence of salt stress on expression of some genes involved in the ethylene signalling pathway in tomato seedlings

Published online by Cambridge University Press:  12 February 2007

Shi Ying ,
Xu Jing-Yu ,
Yu Bian-Yun ,
Zhu Ben-Zhong  and
Luo Yun-Bo
Shi Ying
Affiliation:
College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
Xu Jing-Yu
Affiliation:
College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
Yu Bian-Yun
Affiliation:
College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
Zhu Ben-Zhong
Affiliation:
College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
Luo Yun-Bo*
Affiliation:
College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
*
*Corresponding author: Email: yunbol@public3.bta.net.cn
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Abstract

The expression pattern of genes encoding putative transcription factors in ethylene signal transduction was investigated, after treatment of tomato (Lycopersicon esculentum cv. UC-82) seedlings with solutions of differing NaCl concentration for 12, 24 and 48 h. The role of ethylene signalling in tomato seedlings adapting to salt stress is discussed. Le-EIL1 gene expression in tomato seedlings was promoted after 12 h of treatment under different NaCl concentrations. The amount of Le-EIL2 transcript increased after 12 and 24 h in 0.08 mol/l NaCl, and the same effect was observed for Le-EIL3 gene expression in tomato seedlings grown in 0.04 and 0.08 mol/l NaCl. After 12 h, Le-ERF1 gene expression was significantly enhanced by 0.04 and 0.08 mol/l NaCl treatments. Le-ERF2 gene transcriptional expression increased with the application of 0.04, 0.08 and 0.16 mol/l NaCl to seedlings. However, Pti4 gene expression did not change remarkably. These results suggest that different temporal gene expression patterns exist in Le-EIL and Le-ERF family members after NaCl stress induction.

Keywords

tomato seedling transcription factorssalt stressgene expression
Type
Research Article
Information
Chinese Journal of Agricultural Biotechnology , Volume 1 , Issue 2 , August 2004 , pp. 115 - 118
Copyright
Copyright © China Agricultural University and Cambridge University Press 2004

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